The triquetra has been found on runestones in Northern Europe and on early Germanic coins. It presumably had pagan religious meaning and it bears a resemblance to the Valknut, a symbol associated with Odin.
G Scale Trains are usually referred to as Garden Trains since they are the largest of the model trains and are used outdoors as well as indoors.
TopHobbyTrains Scale Trains & Model Trains and Rai > N Scale Model Trains 1:160. N Scale is 160th of the real or prototype size. It is the second most popular model railroading size behind the larger HO scale which is 1:87. TopHobbyTrains specializes in N Scale and carries the major brands of N Scale trains and has them in stock for delivery to you.